Description
Last update on August 9, 2022 // Source: Amazon API
Rifle Scope Product Details
Swift SRP648M Premier Riflescope, Matte
Swift 1.5-4.5x32mm Premier Waterproof Matte Riflescope 648M features Circle Plus Reticle for easy focusing on target. The 1.5-4.5 x 32mm Swift Riflescope 648-M offers fully multi-coated optics for crisp, bright images. Swift 1.5-4.5×32 Rifle Scope 648 M is parallax free at 100 yards. Swift Premier Riflescope 1.5-4.5x 32mm offers finger turned windage and elevation adjustments. Swift Rifle Scope 648M (1.5-4.5 x 32) is a great riflescope for turkey hunting and black powder shooting.
Rifle Scope Product Features
Waterproof and Fog proof
Speed Focus
Fully Multi-coated Optics
Full Saddle Construction
1/4″ Click Stop Adjustment
SRP648M Premier Riflescope
SWIFT SRP648M Premier Riflescope
1.5-4.5x32m Matte
Circle Plus reticle for easy focusing on target. Great for turkey hunting and black powder shooting. An excellend choice for shotguns.
USA Made BaK7 Schott Glass
Light Amplifying Optics Coating – up to 96% Greater Light Transmission
Fully Multi-coated Optics
Objective Diameter: 32mm
FOV @ 1000 yds/m: 71ft/23.7m, 25ft/8.3m
Eye Relief: 3.3/3.1in, 83.8/78.7mm
Length: 10.4in / 26.4cm
Weight: 12.7oz / 360g
Full Saddle Construction
1 inch Aircraft Aluminum Tube
Re-enforced Reticle Mounts
Quick-focus Eyepiece
Parallax Free at 100 yards
Target Turret, Windage and Elevation
1/4 inch Click MOA
Self-centering Reticle
Complete with Quick-thread Sunshade and Objective Dust Covers
Waterproof, Fogproof and Shockproof
Swift Lifetime Warranty
About the Swift Sport Optics Manufacturer
Swift Sport Optics is a premium maker for weapon scopes, optics, mounting solutions, and other components used for guns like rifles and long guns. They design and make their mounts, scopes, and related products making the most of materials which are long lasting and durable. This includes the Swift SRP648M Premier Riflescope, Matte by Swift Sport Optics. For more shooting products, visit their site.
Information About Rifle Optics
Rifle scopes enable you to exactly aim a rifle at different targets by lining up your eye with the target at range. They do this through magnification using a series of lenses inside the scope. The scope’s positioning can be adjusted to account for various ecological considerations like wind speed and elevation increases or decreases to make up for bullet drop.
The scope’s purpose is to understand precisely where the bullet will land based on the sight picture you are seeing with the scope as you line up the scope’s crosshair or reticle with the intended point of impact. A lot of contemporary rifle scopes have about 11 parts which are found inside and on the exterior of the scope body. These scope parts include the rifle scope’s body, lenses, windage turrets, focus rings, and other elements. Learn about the eleven parts of rifle glass.
Rifle Optic Varieties
Rifle scopes can be either “first focal plane” or “second focal plane” type of optics. Going for the perfect type of rifle glass depends on what type of shooting you plan to do.
About First Focal Plane Optics
Focal plane scopes (FFP) feature the reticle in front of the magnification lens. This triggers the reticle to increase in size based on the extent of magnification being used. The result is that the reticle measurements are the same at the enhanced range as they are at the non amplified range. For example, one tick on a mil-dot reticle at 100 yards without any “zoom” is still the same tick at 100 yards using 5x “zoom”. These types of scopes are useful for:
- Quick acquisition, far away types of shooting
- Shooting circumstances where calculations are very little
- Experienced shooters who have an idea for their target “hold over” as well as “lead” relationships for their firearm
- Shooters who don’t mind the reticle is bigger and takes up more visual eyesight area than a SFP reticle
Info About Second Focal Plane Scopes
Second focal plane scopes (SFP) include the reticle to the rear of the zoom lens. In the FFP example with the SFP scope, the 5x “zoom” one hundred yard tick measurement would be 1/5th of the non “zoom” tick.
- Long distance forms of shooting where shooters have additional time to make ballistic estimations
- Shooting where most of the shots occur within much shorter ranges and proximities
- Shooters who prefer a clearer optic picture without room taken up by the bigger FFP reticle
Magnification for Rifle Glass
The level of scope zoom you need is based on the type of shooting you wish to do. Just about every type of rifle scope delivers some amount of zoom. The volume of zoom a scope offers is identified by the size, thickness, and curves of the lens glass within the rifle optic. The magnification of the optic is the “power” of the glass. This signifies what the shooter is checking out through the scope is amplified times the power factor of what can typically be seen by human eyes.
Single Power Lens Rifle Optic Facts
A single power rifle optic or scope will have a zoom number designator like 4×32. This implies the zoom power of the scope is 4x power while the objective lens is 32mm. The zoom of this kind of optic can not change given that it is a fixed power optic.
Adjustable Power Lens Rifle Glass
Variable power rifle scopes can be adjusted between magnification power levels. It will note the zoom amount in a configuration like 2-10×32. These numbers indicate the magnification of the scope can be set between 2x and 10x power. This also utilizes the powers in-between 2 and 10. The power manipulation is accomplished by applying the power ring component of the scope near the back of the scope by the eye bell.
The Power and Range of Rifle Optics
Here are some recommended scope powers and the ranges where they can be successfully used. Remember that high magnification optics will not be as effective as lower powered optics because excessive zoom can be a negative thing in certain situations. The same concept goes for extended distances where the shooter needs sufficient power to see where to best aim the rifle.
Lens Coating for Rifle Scopes
All contemporary rifle optic and scope lenses are coated. Lens finish can be an important aspect of a shooting platform when looking into high end rifle optics and scope equipment.
ED Versus HD Rifle Optics
Some scope producers also use “HD” or high-definition lens finishings which use different procedures, polarizations, components, and chemicals to draw out various colors and viewable definition through the lens. Some scope producers use “HD” to refer to “ED” indicating extra-low dispersion glass.
Single Coating Versus Multi-Coating for Glass
Different optic lenses can even have different finishings applied to them. All lenses usually have at least some kind of treatment or finish applied to them before being used in a rifle scope or optic assembly. This is since the lens isn’t just a raw piece of glass. It becomes part of the carefully tuned optic. It requires a coating to be applied to it so that it will be optimally usable in numerous kinds of environments, degrees of sunshine (full light VS shaded), and other shooting conditions.
Single coated lenses have a treatment applied to them which is typically a protective and improving multi-purpose treatment. This lens treatment can protect the lens from scratches while minimizing glare and other less useful things experienced in the shooting environment while sighting in with the scope. The quality of a single coated lens depends on the scope producer and how much money you spent paying for it. The scope’s maker and cost are indications of the lens quality.
Some scope manufacturers also make it a point to define if their optic lenses are layered or “multi” covered. This means the lens has multiple treatments applied to the surfaces. If a lens gets numerous treatments, it can prove that a maker is taking several steps to fight different environmental factors like an anti-glare finish, a scratch resistant anti-abrasion finishing, followed by a hydrophilic covering. This also doesn’t necessarily suggest the multi-coated lens is much better than a single coated lens. Being “better” is dependent on the maker’s lens treatment innovation and the quality of materials used in creating the rifle glass.
Anti-water Optic Lens Finishing
Water on a lens does not help with preserving a clear sight picture through a scope at all. Many top of the line and high-end optic makers will coat their lenses with a hydrophobic or hydrophilic finish which is water repellent.
Scope Installing Choices
Installing solutions for scopes can be found in a few options. There are the basic scope rings which are separately installed to the optic and one-piece mounts which cradle the scope. These various kinds of mounts also normally can be found in quick release versions which use manual levers which enable rifle operators to rapidly install and remove the glass.
Hex Key Optic Rings
Basic, clamp style mounting scope rings use hex head screws to position to the flattop style Picatinny scope mount rails on rifles. These kinds of scope mounts use double separate rings to support the scope, and are usually constructed from 7075 T6 billet aluminum which are designed for long distance precision shooting. This kind of scope mount is very good for rifle systems which are in need of a resilient, rock solid mount which will not shift no matter just how much the scope is moved or jarring the rifle takes. These are the type of mounts you want for a faithful optics system on a long distance hunting or sniper competition rifle which will rarely need to be changed or adjusted. Blue 242 Loctite threadlocker can also be used on the mount screws to protect against the hex screws from wiggling out after they are installed tightly in position. An example of these rings are the 30mm style made by Vortex Optics. The set generally costs around $200 USD
Glass Mounts with Quick-Release Cantilever Rings
These kinds of quick-release rifle scope mounts can be used to rapidly attach and remove a scope from a rifle. If they all use a similar design mount, a number of scopes can also be swapped in the field. The quick detach design is CNC machined from anodized 6061 T6 aluminum and the mounting levers attach nicely to a flat top type Picatinny rail. This lets the scope to be sighted in while on the rifle, removed from the rifle, and remounted while keeping precision. These kinds of mounts are useful and convenient for shooting platforms which are transferred a lot, to remove the glass from the rifle for protection, or for optics which are chosen for use in between numerous rifles. An example of this mount style is the 30mm mount from Vortex Optics. It generally costs around $250 USD
Glass Tube Sealing and Gas Purging
Wetness inside your rifle optic can ruin a day of shooting and your costly optic by triggering fogging and developing residue inside of the scope tube. Most scopes avoid moisture from going into the scope tube with a system of sealing O-rings which are waterproof.
Rifle Optic Gas Purging
Another element of preventing the buildup of wetness inside of the rifle scope’s tube is filling the tube with a gas like nitrogen. Since this area is currently occupied by the gas, the glass is less influenced by temperature alterations and pressure differences from the outside environment which might potentially allow water vapor to leak in around the seals to fill the void which would otherwise exist. These are good qualities of a good rifle scope to look for.
